Historical clue formulations

• Reviewers of a beta app — 2024-04-23
• Tough questions — 2010-09-25
• Lab personnel — 2009-01-27
• Final administrators — 2005-04-30
• Lab employees — 1999-08-01
• Product checkers — 1997-11-07
• Samplers — 1997-08-17
• Perfumery employees — 1996-11-09
• Lab personnel — 1996-10-26
• Guinea pigs — 1994-12-23
• Canopies for 94-Across — 1994-09-25